Casio FX-991EX Classwiz Scientific Calculator is a high-performance calculator that is designed for various mathematical and scientific calculations. It has a high-resolution LCD display that helps with clear calculations. It is a reliable tool for calculus, algebra, and geometry with a wide range of functions such as polynomial solvers, numerical integration/differentiation, and matrix calculations. This calculator is solar-powered as well as has a battery backup which ensures uninterrupted use.
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Casio scientific calculator FX-JP900-N high-definition Japanese display function and function more than 700 : Office Products